1) Diff between BCL & FCL?
FCL contains classes that can used to build applications.Eg-System.IO,System.XML,System.Net

What is BCL?

2)3.5 framwork is which level?
a)1 level
b) 2 level
c)3 level
d)4 level

3)Which are the features added in 3.5 that are not in 1.0??

Pleasee help me in solving it.